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Our new state-of-the-art facility in Merriam, KS will be opening in early September!

Dr. Jeff Markey, Doctor of Facial Plastic and Reconstructive Surgery will join our practice in September 2019

Ascentist Physicians Group and Head & Neck Surgical Associates Announce Merger Read More

Dr. Kate Aberle discusses Sublingual Drops as an alternative treatment for allergy sufferers
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PROPEL®: Considering sinus surgery? Learn about new technology
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SINUVA™: Non-surgical solution for nasal polyp suffers
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Jason Showmaker MDBoard-Certified: American Board of Otolaryngology

Dr. Jason Showmaker joined ENT Associates of Greater Kansas City in the Summer of 2018, previously practicing in Columbia and Jefferson City.

Dr. Showmaker earned his Doctor of Medicine degree from the University of Missouri, where he also completed residency in Otolaryngology-Head and Neck Surgery (ENT). Certified by the American Board of Otolaryngology, Dr. Showmaker is also a member of the American Academy of Otolaryngology - Head and Neck Surgery and is a member of the national AAO-HNS Ethics Committee since 2015. He is a member of the the Missouri Society of Otolaryngology, the American Medical Association, and Alpha Omega Alpha, the nation's most prestigious medical honor society.

Dr. Showmaker has a special interest in thyroid and parathyroid surgery and is certified by the American Association of Clinical Endocrinologists (AACE) for his use of ultrasound to identify tumors within these glands. Dr. Showmaker is the only ENT surgeon in the state of Missouri to have earned the "Endocrine Certification in Neck Ultrasound" as a result of his expertise in head and neck ultrasonography which he performs in the office.

Dr. Showmaker treats all conditions of the ear, nose and throat and has additional interest in pediatric ENT problems, including feeding problems in newborns, adult sinus disease, nasal blockage, thyroid nodules, thyroid cancer and hyperparathyroidism.

In his spare time, Dr. Showmaker enjoys reading, listening to music and spending time with his wife and three children.


University of Missouri-Columbia

University of Missouri-Columbia School of Medicine
Doctor of Medicine

Truman State University
Bachelor of Science, Organismal Biology


Fellow (FAAO-HNS), American Academy of Otolaryngology
American Association of Clinical Endocrinologists: Endocrine Certification in Neck Ultrasound.


2015, 2016    Distinguished Member of Committee of Excellence, American Academy Otolaryngology - Head Neck Surgery


Declining Otolaryngology Resident Training Experience in Tracheostomies: Case Log Trends from 2005 to 2015”.
Lesko, D.,Showmaker, J.,Ukatu, C.,Wu, Q.,Chang, CWD.; Otolaryngol Head Neck Surg. 2017 May 04.

“A Retropharyngeal Mass in a Young Boy”. Showmaker, J., Gov-Ari, E.; JAMA Otolaryngol Head Neck Surg. 2013 Dec 21.

2 citations “Life-threatening tension subcutaneous emphysema as a complication of open tracheostomy”.
Showmaker, J.A., Page, M.P.; Otolaryngol Head Neck Surg. 2010 Apr.